The first physics operation phase on the stellarator experiment Wendelstein 7-X was successfully completed in March 2016 after about 10 weeks of operation. Experiments in this phase were conducted with five graphite limiters as the primary plasma-facing components. Overall, the results were beyond the expectations published shortly before the start of operation [Sunn Pedersen et al., Nucl. Fusion 55, 126001 (2015)] both with respect to parameters reached and with respect to physics themes addressed. We report here on some of the most important plasma experiments that were conducted. The importance of electric fields on global confinement will be discussed, and the obtained results will be compared and contrasted with results from other devices, quantified in terms of the fusion triple product. Expected values for the triple product in future operation phases will also be described and put into a broader fusion perspective.
Sunn Pedersen, Thomas, et al. "Key results from the first plasma operation phase and outlook for future performance in Wendelstein 7-X." Physics of Plasmas, vol. 24, no. 5, May. 2017. https://doi.org/10.1063/1.4983629
Sunn Pedersen, Thomas, Dinklage, Andreas, Turkin, Yuriy, et al., "Key results from the first plasma operation phase and outlook for future performance in Wendelstein 7-X," Physics of Plasmas 24, no. 5 (2017), https://doi.org/10.1063/1.4983629
@article{osti_1361899,
author = {Sunn Pedersen, Thomas and Dinklage, Andreas and Turkin, Yuriy and Wolf, Robert and Bozhenkov, Sergey and Geiger, Joachim and Fuchert, Golo and Bosch, Hans-Stephan and Rahbarnia, Kian and Thomsen, Henning and others},
title = {Key results from the first plasma operation phase and outlook for future performance in Wendelstein 7-X},
annote = {The first physics operation phase on the stellarator experiment Wendelstein 7-X was successfully completed in March 2016 after about 10 weeks of operation. Experiments in this phase were conducted with five graphite limiters as the primary plasma-facing components. Overall, the results were beyond the expectations published shortly before the start of operation [Sunn Pedersen et al., Nucl. Fusion 55, 126001 (2015)] both with respect to parameters reached and with respect to physics themes addressed. We report here on some of the most important plasma experiments that were conducted. The importance of electric fields on global confinement will be discussed, and the obtained results will be compared and contrasted with results from other devices, quantified in terms of the fusion triple product. Expected values for the triple product in future operation phases will also be described and put into a broader fusion perspective.},
doi = {10.1063/1.4983629},
url = {https://www.osti.gov/biblio/1361899},
journal = {Physics of Plasmas},
issn = {ISSN 1070-664X},
number = {5},
volume = {24},
place = {United States},
publisher = {American Institute of Physics},
year = {2017},
month = {05}}
PLASMA 2007: International Conference on Research and Applications of Plasmas; 4th German-Polish Conference on Plasma Diagnostics for Fusion and Applications; 6th French-Polish Seminar on Thermal Plasma in Space and Laboratory, AIP Conference Proceedingshttps://doi.org/10.1063/1.2909160